Internet is the global system. It is interconnected computer networks. It includes network of networks. It consists of private, public, academic, government networks and business. Internet is used to get more information resources and services. Some of the traditional communications media is music, film, telephone, television and many more. In these days, most of the people like to buy in online shopping. It is used for many purposes such as businesses, financial services, online shopping, instant messaging and many more. There are many social networking sites available. Internetwork is the abbreviation of the internet. Internet is simply known as the net. The global network is used in computers. In this service, there are many countries exchange their news, data and opinions. There is little difference between the Internet and the World Wide Web. Internet advertising is more popular in these days. It is more cost effective. It provides many applications.